Special lubricants for metallurgical processes

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Pierce Porter
6 years ago
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1 Special lubricants for metallurgical processes

Lubricants for the steel industry Save costs, environment and machine elements through lubrication awareness.

The steel manufacturing process is challenged by tribological* obstacles e.g. high process temperatures, corrosive cooling liquids, abrasive dust, devastating shock-loads etc.

Protecting, high-quality lubricants that enable robust running during unfavourable operating conditions is part of the core competence that makes CARL BECHEM GMBH special.

2 Lubricants for the steel industry Save costs, environment and machine elements through lubrication awareness. The continuous strive for better performing technical equipment has steadily increased the demands on modern steels and consequentially the involved lubricants as well. The steel manufacturing process is challenged by tribological* obstacles e.g. high process temperatures, corrosive cooling liquids, abrasive dust, devastating shock-loads etc. Additionally; the high costs associated to process interruptions must carefully be considered. Protecting, high-quality lubricants that enable robust running during unfavourable operating conditions is part of the core competence that makes CARL BECHEM GMBH special. It has been proven that BECHEM s high-performance lubricants have the power to extend the technical life of heavy equipment with trailing positive environmental benefits. BECHEM s market leading lubricants are designed to passivate entraining process fluids, protect the surfaces against tribocorrosion, supply a protective film with high separation power and maintain lubrication also during high operating temperatures among others. * Tribology: the science of lubrication, friction and wear In close collaboration with equipment manufacturers, industrial- and academic partners we continue since decades to improve the recipes of our products in order to excel in challenging applications and at the same time fulfil or surpass the strict environmental legislations imposed on us and our customers. Backed up with additional system understanding, know-how and products from BECHEM; the customer defeats the challenging lubrication problems as a team.

Continuous caster unit The operational environment in the continuous caster unit is characterised by slow rotation, high temperatures and corrosive process water ingress.

This product is a sealing grease with high capability of keeping water and abrasive foreign particles out of the contact, thus maintaining the intended technical life of the bearings.

long-time lubrication and high performance in a thermally stressed operating environment.

3 Continuous caster unit The operational environment in the continuous caster unit is characterised by slow rotation, high temperatures and corrosive process water ingress. Being market leader in the technology of large molecular polyurea products, BECHEM has developed the Berutox M 21 KN with this challenging application in mind. This product is a sealing grease with high capability of keeping water and abrasive foreign particles out of the contact, thus maintaining the intended technical life of the bearings. The combination of high surface affinity (inherent to the molecular structure of the thickener-matrix) with well-balanced additivation and thick base oil viscosity offers a lubricant designed for long-time lubrication and high performance in a thermally stressed operating environment. For system-critical applications (as the ladle turret, straightener units or converter bearings) special lubrication solutions with e.g. solid lubricant particles and high base oil viscosity can be offered at various qualities and properties. n Ultra-high-temperature greases n High-temperature greases BECHEM High-Lub FA 50 MO n Lubricating greases with increased load-carrying ability Berutox VPT 64 Berutox M 21 KN BECHEM Ceritol PSA 12 H Berutox FH 28 KN Berutox M 21 KN BECHEM Ceritol PSA 12 H

Hot strip mill Alike with the continuous caster, the operation of a hot strip mill is characterized by high temperatures and process water ingress, however; the hot strip mill operates generally with

Tailor-made lubricants with enhanced surface separating capability, corrosion protection and sealing ability help customers to optimize performance and up-time of their plants.

this challenging application. Also the newest addition to the product portfolio; BECHEM High-Lub LT 2 EP has already earned an internationally good reputation due to its remarkable performance.

4 Hot strip mill Alike with the continuous caster, the operation of a hot strip mill is characterized by high temperatures and process water ingress, however; the hot strip mill operates generally with higher rotational speeds and higher occurrence of chock loads. Tailor-made lubricants with enhanced surface separating capability, corrosion protection and sealing ability help customers to optimize performance and up-time of their plants. The flagship in hot strip mill lubrication, BECHEM High-Lub FA , has been developed together with German steel industry and academia for optimum lubrication of the rolling element bearings in this challenging application. Also the newest addition to the product portfolio; BECHEM High-Lub LT 2 EP has already earned an internationally good reputation due to its remarkable performance. It has been developed by»steel people«for»steel applications«and additionally fulfils or exceeds the German steel norm (SEB). The introduction of BECHEM high-performance lubricants has in some cases reduced the lubrication quantity by sensational %. n High-temperature greases n Universal high-performance greases n Lubricating greases with increased load-carrying ability n Oils for special applications BECHEM Ceritol PSA 12 H BECHEM High-Lub FA Beruplex KS 22 BECHEM Ovitol KT S BECHEM High-Lub FA

Cold rolling mill In cold rolling mills, the equipment is running at significantly higher speeds and the cooling liquid is replaced by a chemically more active rolling mill emulsion.

Due to the imminent risk of overheating (increased hydrodynamic losses caused by the higher operational speeds) the oil composition and viscosity must be carefully chosen in order to minimise the

5 Cold rolling mill In cold rolling mills, the equipment is running at significantly higher speeds and the cooling liquid is replaced by a chemically more active rolling mill emulsion. Chemical inertness and a high sealing power are all playing active roles in from the lubricant s side keeping the operation running. Due to the imminent risk of overheating (increased hydrodynamic losses caused by the higher operational speeds) the oil composition and viscosity must be carefully chosen in order to minimise the temperature increase and pre-mature lubricant degradation. Extensive tests with international partners have proved that BECHEM products have the ability to lubricate most existing equipment with a visible return of investment. Viable solutions for rolling of other materials e.g. Aluminium or Copper also exist. n Universal high-performance greases n Oils for special applications BECHEM High-Lub FA Beruplex PMC 42 F BECHEM Ovitol KT S

Lubricants for special applications In an integrated steel plant, the steel-processing units represent only a small part of the total operation.

The Berutox, BECHEM High-Lub and Beruplex lubricant families have therefore been developed in order to meet or surpass the demands in virtually all applications in an integrated steel plant.

This fully synthetic, high-temperature product is capable of sustaining an approximately 7 times longer life in the FAG FE9 roller bearing test apparatus in comparison to commercially available

For slowly moving slewing-type bearings (always operating during mixed- or boundary lubrication conditions) the BECHEM High-Lub FA 50 MO is often applied.

6 Lubricants for special applications In an integrated steel plant, the steel-processing units represent only a small part of the total operation. Sinter plants, coke plants, blast furnaces, various transmissions and transportation systems are also expensive equipment with high demands on lubricants and lubrication. The Berutox, BECHEM High-Lub and Beruplex lubricant families have therefore been developed in order to meet or surpass the demands in virtually all applications in an integrated steel plant. Berutox FH 28 KN is an excellent example of a successful product deployed in steel industry worldwide. This fully synthetic, high-temperature product is capable of sustaining an approximately 7 times longer life in the FAG FE9 roller bearing test apparatus in comparison to commercially available mineral- based equivalents. This is an attractive lubricant feature that significantly reduces the required consumption and environmental impact whilst increasing life at BECHEM-customers equipment. For slowly moving slewing-type bearings (always operating during mixed- or boundary lubrication conditions) the BECHEM High-Lub FA 50 MO is often applied. This product is composed of high viscosity mineral base oil dispersed in an adhesive Lithium/ Calcium thickener and additionally enriched with solid lubri-cant particles. High corrosion protection-, surface separa-tion- and load carrying abilities are trademarks of this special BECHEM innovation. Moving over to gear transmissions, BECHEM has developed a synthetic product family (for operation above +90 C) and a mineral based alike for high-performance operation during more commonly occurring temperatures. Tests at customers have indicated up to 5 % reduction of tribological losses and approximately 4 times longer life with BECHEM synthetic gear oils in comparison to standard mineral products on the market. Striving to always provide the best solutions; BECHEM scientists have exercised great caution to consider all aspects of chemistry in order to optimise performance, for example: polarity features (for surface wetting and protection) additives for formation of tribological layers (in order to protect against corrosion, minimise wear and rapidly maximise the contact area of the gear flanks) seal compatibility (to maintain good protection against foreign particle ingress in dusty environments) Service concept Spanning from inspections and technical support to advanced failure-mode analysis and recommendations for improvements, the BECHEM service concept is highly diversified. By forming a strong team with CARL BECHEM GMBH the customers will not only benefit from first class products but also from competent help in the following disciplines: Problem definition and tests Technical- and chemical expertise Customer adapted training Lubrication advice Optimisation of re-lubrication intervals Inspections Sampling and analysis of lubricants Failure investigations and suggestions for remedies Customer-specific lubricant developments Thanks to our global competence net; skilled help from well-trained technicians worldwide is never out of reach. This makes BECHEM truly special!

7 Lubricating greases, gear oils and some special fluids Ultra-high-temperature greases Berutox VPT 64 Berutox FH 28 KN Berutox M 21 KN Fully synthetic, high-temperature lubricant for bearings subjected to extreme thermal load (up to 260 C); hot air fans, strand guides and ovens etc. Fully synthetic, high-temperature grease sustaining operation also in chemically active environments up to 180 C; continuous caster segments, conveyors, hot air fans, cooling beds etc. Large molecular urea-based grease with exceptional long grease life. The product is applicable in continuous caster segments, cooling beds, conveyor systems etc. up to 180 C. High-temperature greases/synthetic high-temperature oils BECHEM Ceritol PSA 12 H Beruplex CMA 21 Berusynth EP Specially developed polyurea thickener (for continuous operation up to 160 C) that will not clog central lubrication lines even at radiation heat in excess of +280 C. Additionally offering superb corrosion protection this product is suitable for lubrication of down-coiler mandrels, foot- and guide rolls, ovens etc. Calcium complex-based grease for heavily loaded applications under heavy process water ingress up to 160 C; sinter plants, blast furnaces, ladle turrets etc. Synthetic polyglycol-based CLP gear oil. Product is suitable for high-temperature operation up to 180 C in closed transmission systems available in ISO VG 68 to Berusynth GP PAO-based CLP gear oil suitable for operation up to 180 C, available in ISO VG 68 to Universal high-performance greases/high-performance gear oils BECHEM High-Lub LT 2 EP BECHEM High-Lub FA Berugear GS BM Multi-purpose grease with high load-carrying ability. High sealing capability and exceptional corrosion protection makes this product suitable for applications (in the medium temperature region) in continuous casters as well as in both hot strip mills and cold rolling mills. Multi-purpose grease with high inherited (via the chemical structure) corrosion-protection ability. Suitable for lubrication of nearly all highly- and dynamically loaded rolling element bearings (in the normal temperature range) appearing in steel industry. Lithium/Calcium-based lubricant with unprecedented sealing capability and high corrosion protection. The product is widely used in e.g. work roll bearings in cold rolling- and hot strip mills all around the world. Special gear oil with plastic deformation (PD) additives, suitable for an improved run-in process or continuous operation in heavily loaded or damaged gears. Available in ISO VG 100 to BECHEM Staroil G Standard mineral-based CLP gear oil; available in ISO VG Lubricating greases with increased load-carrying ability BECHEM High-Lub FA 50 MO Beruplex KS 22 Special grease containing a highly viscous base oil and solid lubricant particles. Especially developed for highly loaded and slowly moving contacts e.g. converter bearings, ladle turrets, pivot bearings, sliding bushings etc. Highly stabile special calcium complex-type thickener for highly loaded contacts during significant influence of process fluids. Typical applications: ladle turrets, work roll bearings in hot strip mills, sinter plants and blast furnaces etc. Special applications Berulit IKP BECHEM Ovitol KT S Beruprotect Rope Dressing Graphite-containing chain oil with extreme pressure (EP) additivation. Suitable for application in conveyorand loading systems operating in dusty atmosphere. Special lubricating oil for hydrodynamic- and hydrostatic bearings. The lubricant is especially enhanced in aspects of water demulsification, oxidation stability, air separation as well as steel and brass corrosion. Available viscosity classes range from ISO VG 100 to 680. Water- and dust repellent anti-corrosion agent for conservation purposes of machine elements.

8 Lubrication Solutions for Industry With 180 years of experience, BECHEM is one of the leading manufacturers of premium quality special lubricants and metal working fluids. Close cooperation with research institutes, industry partners and product users as well as the knowledge, skills and major commitment by our staff are guarantees of new and innovative high performance lubricants, which contribute to the success of our customers at home and abroad. A powerful network of distributors and several national and international production sites ensure our products are readily available worldwide. Tomorrow s technologies. Today. CARL BECHEM GMBH Weststr Hagen Germany Phone Fax bechem@bechem.de /0514/ Thanks to ThyssenKrupp AG for the provided photo material

Special lubricants for metallurgical processes

Special lubricants for metallurgical processes Lubricants for the steel industry Save costs, environment and machine elements through lubrication awareness The continuous strive for better performing technical